#include <stdio.h>
int main(){
	int a[10]={1,4,9,16,25,36,49};
	int* p=a;
	int* q=&a[5];
	printf("q=%d\n",q);
	printf("p=%d\n",p);
	printf("q-p=%d\n",q-p);
	return 0;
}
